참고로 밑에 코드도 안됩니다
String queryUrl = "http://openapi.kepco.co.kr/service/evInfoService/getEvSearchList?" + sidoName +
"serviceKey=INtNC54XZqdLzdO%2BaPP5sO9ZR3%2FgW1z7IbGhd6uPOuYaTmB5iYtZKJLRme9rlEEn23GBSkUNSIJUZYQ%2FygATHw%3D%3D&numOfRows=10&pageNo=1&searchCondition=DAILY&" + key;